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Cumulus Panyam 450 (Large)

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The Cumulus Panyam 450 is a longer version of the extremely versatile down sleeping bag, perfect for summer alpine use and suitable for all but the harshest UK winter conditions.

Using ultra-light Pertex Quantum for the outer (weighing in at only 29 g/m2) and 450g of 850 cuin Polish goose down, the Panyam 450 is designed for lightweight end uses, where warmth-to-weight is the primary concern. Trapezoidal chamber construction, a shark-fin foot box and an ergonomic design of the hood provide unique comfort. Additionally, Cumulus have added draw cords and tapes to the hood making it more adjustable. It is also equipped with an independent, adjustable elastic collar with velcro fastening.

Who are Cumulus?

Designed and built in Poland, Cumulus draw on 30 years of experience and know-how in down and textile manufacture to provide some of THE best sleeping bags on the market. At the vanguard of sleeping bag construction techniques and design innovation, Cumulus offer as many as five methods of chamber construction, each developed to offer its own unique benefits [Cumulus Down Sleeping Bag Construction article]. All bags use sustainably sourced Polish goose or duck down, high-grade face and liner fabrics from Pertex, YKK zippers and, unlike most other sleeping bag brands, are entirely constructed in the EU.

Cumulus clothing and sleeping bags hold the EDFA (European Down and Feather Association) certificate for ethical down sourcing.

Advice on Temperature Ratings

Temperature ratings are used to indicate a bags performance and help you decide between models. However, they are subjective and can be greatly affected by factors such as what you're happy to wear (clothing wise) in conjunction with the bag, your health and metabolism, how much you have had to eat or drink, humidity and altitude, the type of shelter used and whether you are using a suitable insulating mat.

As a guide, the "Comfort" rating indicates the range at which a woman gets a comfortable night’s sleep, the "Limit of Comfort" rating indicates the range at which a man gets a comfortable night’s sleep and the "Extreme" rating indicates a range at which a woman is protected from hypothermia. The Extreme rating is basically a survival rating and it is not advisable to rely on this for general use.

More Help? For further assistance on choosing your down sleeping bag, please view this article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view here: Down Sleeping Bags.

Model ComparisonThis model’s closest comparison would be a Rab Neutrino 400, although of course this bag provides an extra 50g of down.

Features

Fabric: Pertex Quantum DWR, 29 g/m²

Filling: Polish goose down, 850 cuin

Construction: Trapezoid chambers

Independently filled top and bottom of the sleeping bag

Shark-fin foot box

175 cm YKK separating zip with two self-locking sliders

Can be opened and ventilated at the bottom of the sleeping bag

Can be combined with other sleeping bags

Full length, down-filled, zip insulating baffle

Independent down-filled collar

3D, adjustable hood with a draw cord, a lock and a tape

Mesh pocket with a zip inside the sleeping bag, a fluorescent puller

Three external eyes on the longer side of the sleeping bag used for drying it